Multiple Choice Question on Basic Concept of Science Class XI-XII Standard Practice Test 9
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This is a mock drill question bank on Basic Concept of Science of Class XI and XII standard. The question bank consists of 10 questions with clock set for 10 minutes. After you finish the test, press Quiz Finish and you will get the answer sheet, your result and its comparison with others. You will also be given remarks containing the explanation about the answer and also about the distracters (other options) to build confidence on the subject.
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The Answer Key:
Sr No Question Answer Remarks 1 How is the charge accumulated on the aeroplane during flight taken care? conductive material is added in the wheel tyre to discharge the accumulated charge immediately on landing Due to air rubbing with the body of the aeroplane, charge accumulates on the surface of the aeroplane and it is necessary to discharge it immediately on landing otherwise it will try to discharge through the bodies which will come in contact with it. The tyres are made with some parts of conductive material. Discharge is not possible in the sky because of the same potential of all bodies. 2 A current is flowing through a conductor with varying crossection from place to place. Which of the quantity remains constant through out the conductor? current 3 Dioptre is used as unit of measurement of optical power and is equal to 1/f Dioptre scale has been developed to make the calculation for ophthalmologist simpler as optical power in dioptre is added when two thin glass are placed close to each other. It means that dioptre power of +5 when placed along with +2 dioptre power will make it to +7 dioptre. 4 105 Calories of heat is required to raise the temperature of 3 mole of a gas from 30°C to 35°C at constant pressure. How much heat will be required to raise by 10°C at constant volume. 75 Let Qp=CpΔtm and Qv=CvΔtm; we get Cp/Cv=Qp/Qv=ϒ=1.4(mono-atomic gas). Qv = Qp/1.4 = 105/1.4 =75 calories. 5 Energy stored in a capacitor is given by E=½CV² Energy stored is given by Q²/2C=½CV²=½QV 6 The voltage applied across a battery of emf E and internal resistance r for charging is V=E+ir The supply voltage has to be more than the emf of the battery and shall compensate for the voltage drop across the internal resistance i.e. Ir. 7 The speed of light in air and water are 3 and 2.25×10⁸ m/sec respectively. A person standing near a water pool of 1 meter depth will observe the height to be 0.75 m The apparent depth is given by Real depth* Speed of light in water/speed of light in air. If a person looks towards a object from inside the pool which is 1 m height will find it at 1.33 meter high. 8 The constant in isothermal process is Temperature 9 The constant in isobaric process is Pressure 10 Splitting of light into its constituent colours is called dispersion of light -
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Question 1 of 10
1. Question
How is the charge accumulated on the aeroplane during flight taken care?
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Question 2 of 10
2. Question
A current is flowing through a conductor with varying crossection from place to place. Which of the quantity remains constant through out the conductor?
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Question 3 of 10
3. Question
Dioptre is used as unit of measurement of optical power and is equal to
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Question 4 of 10
4. Question
105 Calories of heat is required to raise the temperature of 3 mole of a gas from 30°C to 35°C at constant pressure. How much heat will be required to raise by 10°C at constant volume.
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Question 5 of 10
5. Question
Energy stored in a capacitor is given by
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Question 6 of 10
6. Question
The voltage applied across a battery of emf E and internal resistance r for charging is
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Question 7 of 10
7. Question
The speed of light in air and water are 3 and 2.25×10⁸ m/sec respectively. A person standing near a water pool of 1 meter depth will observe the height to be
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Question 8 of 10
8. Question
The constant in isothermal process is
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Question 9 of 10
9. Question
The constant in isobaric process is
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Question 10 of 10
10. Question
Splitting of light into its constituent colours is called
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